SiME341909EA
Check
Part 6 Service Diagnosis
273
6.10 Broken Wire Check of the Relay Wires
CHECK 15
1. Procedure for checking outdoor-outdoor unit transmission wiring for broken wires
On the system shown below, turn OFF the power supply to all equipment, short circuit
between the outdoor-outdoor unit terminal F1 and F2 in the "Outdoor Unit A" that is farthest
from the central remote controller, and then conduct continuity checks between the
transmission wiring terminal blocks F1 and F2 of the central remote controller using a
multimeter. If there is continuity between the said terminal blocks, the outdoor-outdoor unit
transmission wiring has no broken wires in it.
If there is no continuity, the transmission wiring may have broken wires. With the
outdoor-outdoor unit terminal of the "Outdoor Unit A" short circuited, conduct continuity
checks between the transmission wiring terminal blocks F1 and F2 of the unified ON/OFF
controller.
If there is no continuity as well, conduct continuity checks between the outdoor-outdoor unit
terminal of the "Outdoor Unit E", between the outdoor-outdoor unit terminal of the "Outdoor
Unit D", between the outdoor-outdoor unit terminal of the "Outdoor Unit C", … in the order
described, thus identifying the place with continuity.
If the place with continuity can be identified, there may be broken wires in places before the
said place with continuity.
Summary of Contents for VRV X RXQ6-48ANR Series
Page 1: ...Service Manual Cooling Only 50 60 Hz RXQ6 48A N R Series SiME341909EA...
Page 289: ...SiME341909EA Wiring Diagrams Part 7 Appendix 283 RXQ10 12ARYFK 2D124184...
Page 290: ...Wiring Diagrams SiME341909EA 284 Part 7 Appendix RXQ14 16ARYFK 2D124183...
Page 295: ...SiME341909EA Wiring Diagrams Part 7 Appendix 289 FXMQ40 50 63 80 100ARV1 3D127112 04 59...